The retirees, from West Boylston, Mass., love to parade 3-year-old Chino down busy streets in her stroller. They take her to restaurants dressed in her fur-lined vest or polo hoodie where “she sits in her own chair, very polite.”

But their favorite place may be the seashore, where Chino wears sunglasses and one of her four beach dresses while lounging in a chair embroidered with her name.